the advantages of digital field data collection in the gis environment
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The advantages of digital field data collection in the GIS environment. Malaysian Geospatial Conference Malacca 6-7 March 2012 Ray Chung APAC Regional Manager – Trimble Navigation. The big question:. Where do we need improvements?. Where are our assets?. “WHERE?”. - PowerPoint PPT PresentationTRANSCRIPT
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The advantages of digital field data collection in the GIS environment.
Malaysian Geospatial ConferenceMalacca 6-7 March 2012
Ray ChungAPAC Regional Manager – Trimble Navigation
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The big question:
“WHERE?”Where are our assets?
Where do we need improvements?
Where are our field workers?
Where are our vehicles & equipment?
Where did we get this information?
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GIS Data Collection Solutions
• Systems designed specifically for location-based field work:– Data collection– Asset management – Inspection
• Professional-grade GNSS in the hand for GIS applications– Communications– Cameras with geotagging– High-visibility touch screens– Software and unique technologies for
better productivity
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Adding value to GIS• Organisations utilise GIS to make critical decisions
– But where is the data coming from?
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If GIS data collection is worth doing, it’s worth
doing right.
If GIS data collection is worth doing, it’s worth
doing right.
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• The Problem:– Finding the toby locations in emergency
situations– Buried assets – more difficult to find under
snow or in large expanses of land• Old Way
– Memory!– Hand-drawings
• Nearby many water meters – drawn relative to meter
• Not to scale or updated since– Use map to get 'close' and metal detector and
shovel to find valve.
WHITWORTH WATER DISTRICT, USA
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• Workflow– Locate and collect curb stops with high accuraccy– QA/QC performed on site– Waypoint files created and used for service calls
• Spreadsheet for address/ID lookup– Navigate to curb stop valve
• +/- 100mm in most cases– Update the GIS after work is performed
WHITWORTH WATER DISTRICT, USA
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• The Problem:– Information required to monitor gardens related to food security
• Old Way– Combination of paper forms, separate
GPS, camera (digital photos) • New Way: Trimble Solution
– Municipal Reporter system utilising variousTrimble platforms
• Juno, Yuma + ProXT• Laser rangefinder
AFRICA CONSERVATION TRUST, SOUTH AFRICA
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• Workflow benefits– “Faster and more efficient data capture
which has saved on time in the field and time in the office.”
– Saved the cost of one worker
AFRICA CONSERVATION TRUST, SOUTH AFRICA
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Characteristic/ItemTrimble
workflowPen & Paper
Consumer Device
Field UI designed for GIS data collection ? x
Digital, fixed field/mandatory data entry x x
Office software offering GIS integration x x
Data immediacy x x
Retain knowledge (eliminate brain drain) ? ?
Field crews stay on task at hand- Secure data store omits loss (reduces trips)
x x
Field-to-Office workflow is streamlined x x
Detailed attribution core to solution x x
Reliable and consistent spatial link- Accuracy metadata
x x
Data Collection Method – Comparison
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Trimble Workflow Pen & Paper Workflow
Overa
ll C
ost
Capital Costs
Capital Costs
Field Work
Field Work
Data Integration
Data Integration
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Metropolitan Electricity AdministrationBangkok, Thailand
•20%-30% of all errors are attributed to transcribing field workers data sheets by data entry personnel!
•Reasons – unable to read writing, understanding and transferring diagrams, technical and personal jargon and abbreviations
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If GIS data collection is worth doing, it’s worth
doing right.
If GIS data collection is worth doing, it’s worth
doing right.
![Page 14: The advantages of digital field data collection in the GIS environment](https://reader036.vdocuments.net/reader036/viewer/2022062422/56813e86550346895da8c0d8/html5/thumbnails/14.jpg)
Questions